\documentclass[10pt]{article}
\input{lectbase}
\hypersetup{
    colorlinks,%linkcolor=blue,anchorcolor=blue,citecolor=green,
    pdfcreator={TeX}, 
    pdfauthor={multiple1902@gmail.com}
    }

\begin{document}

\input{license.tex}

\input{signals_chaps/lect1.tex}

\end{document}
